The International Commission on Large Dams, or ICOLD, (French: Commission Internationale des Grands Barrages or CIBG is an international non-governmental organization dedidicated to the sharing of professional information and knowledge of the design, construction, maintenance, and impact of large dams. It was founded in 1928 and has its central office in Paris, France. It consists of 90 member national committees which have a total membership of about 10,000 individuals.[1] Official languages of the commission are English and French.